Question

The reaction rates of many spontaneous reactions are actually very
slow (recall the famous example discussed in class, that of diamond
changing to graphite at room temperature). Which of these
statements is the best explanation for this observation?

a. ?G� for the reaction is positive.
b. The entropy change is negative.
c. Kp for the reaction is less than one.
d. The activation energy of the reaction is large.
e. Such reactions are endothermic.